CN108838311A - A kind of cold-forging forming mold of abnormity channel clutch can - Google Patents

A kind of cold-forging forming mold of abnormity channel clutch can Download PDF

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Publication number
CN108838311A
CN108838311A CN201810692250.4A CN201810692250A CN108838311A CN 108838311 A CN108838311 A CN 108838311A CN 201810692250 A CN201810692250 A CN 201810692250A CN 108838311 A CN108838311 A CN 108838311A
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CN
China
Prior art keywords
channel
guide
cold
locking
block
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Granted
Application number
CN201810692250.4A
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Chinese (zh)
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CN108838311B (en
Inventor
张花根
季微微
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JIANGSU CHUANGYI PRECISION FORGING CO Ltd
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JIANGSU CHUANGYI PRECISION FORGING CO Ltd
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Priority to CN201810692250.4A priority Critical patent/CN108838311B/en
Publication of CN108838311A publication Critical patent/CN108838311A/en
Application granted granted Critical
Publication of CN108838311B publication Critical patent/CN108838311B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/02Dies or mountings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/08Accessories for handling work or tools
    • B21J13/14Ejecting devices

Abstract

The invention proposes a kind of cold-forging forming molds of special-shaped channel clutch can comprising:Top mold holder;Cold-forging forming cavity plate, the cold-forging forming cavity plate are connected to the lower section of the top mold holder through connecting rod, and the extrusion die cavity for running through the cold-forging forming cavity plate from top to bottom is formed in the cold-forging forming cavity plate;Lower mold holder;Guide post, the guide post are connected to the top of the lower mold holder and are coaxially disposed with the cavity plate, and the upper end of the guide post is formed with guide part;The work block assembly of channel made of being surrounded as several single-lobe channel operation blocks, the channel operation block component is set on the guide part of the guide post and can slide up and down along the guide part of the guide post, the petal structure complementary with the channel structure of special-shaped channel clutch can be formed is formed in the middle part of the outer wall of the channel work block assembly, the lower part of the outer wall of the channel work block assembly, which is formed with, tightens slot;Spring is tightened, the spring of tightening is set to described tighten in slot.

Description

A kind of cold-forging forming mold of abnormity channel clutch can
Technical field
The present invention relates to forging forming manufacture fields, and in particular to the cold-forging forming mold of special-shaped channel clutch can.
Background technique
Special-shaped channel clutch can is a kind of common auto parts and components.It please refers to shown in Fig. 1, it illustrates a kind of special-shaped ditches The structural schematic diagram of road clutch can 100.As shown in Figure 1 comprising bar portion 101 and shell portion 103, between bar portion 101 and shell portion 103 It is connected through transition part 102.The cavity of open upper end is formed in shell portion 103, transition part 102, the cavity includes being located at shell portion Biggish first cavity in aperture in 103 and lesser second cavity in aperture in transition part 102, first cavity Circumferentially arranging on inner sidewall, there are six the channels of petaloid, particularly:The channel of six petaloids, including three and bar portion 101 The second class channel that the angle of first kind channel 104 that the angle of central axis is-a and three and the central axis of bar portion 101 is a 105.As it can be seen that the channel structure and unsymmetric structure of special-shaped channel clutch can 100,
In the prior art, the processing technology of special-shaped channel clutch can is:Blanking->Rough turn->Smart car->Mill special-shaped channel-> Rub spline-with the hands>Heat treatment->Grind channel.The shortcomings that prior art is:Channel is formed by machining, the metal streamline quilt of channel Broken ring;Shell portion part is deformed without cold forging, it is therefore necessary to increase additional heat treatment process to improve its intensity, to increase Production cost;Lathe process and Milling Process require to spend a large amount of working hours, and occupancy equipment is more, production efficiency is low.
Further, since the channel in special-shaped channel clutch can is unsymmetric structure, conventional mold cannot achieve special-shaped ditch The forging and molding of road clutch can.
It is therefore desirable to be transformed to the prior art, to develop more suitably, for special-shaped channel clutch can Forging technology, and develop corresponding forging and molding mold.
Summary of the invention
The present invention provides a kind of cold-forging forming molds of special-shaped channel clutch can, are not only able to achieve to special-shaped channel clock The cold-forging forming of shape shell, and can be realized the smooth material returned of special-shaped channel clutch can.Abnormity channel provided by the invention is bell The specific technical solution of the warm forging shaping dies of shell is as follows:
A kind of cold-forging forming mold of abnormity channel clutch can, which is characterized in that it includes:
Top mold holder;
Cold-forging forming cavity plate, the cold-forging forming cavity plate are connected to the lower section of the top mold holder, the cold forging through connecting rod The extrusion die cavity for running through the cold-forging forming cavity plate from top to bottom, the minimum-value aperture of the extrusion die cavity are formed in female die for forming Match with the outer diameter in the shell portion of the special-shaped channel clutch can be formed;
Lower mold holder;
Guide post, the guide post are connected to the top of the lower mold holder and are coaxially disposed with the cavity plate, the guiding The upper end of column is tapered and forms guide part;
The work block assembly of channel made of being surrounded as several single-lobe channel operation blocks, the channel operation block component are set in It can slide up and down on the guide part of the guide post and along the guide part of the guide post, outside the channel work block assembly The middle part of wall is circumferentially formed with valve including several petals and complementary with the channel structure of special-shaped channel clutch can be formed Mode structure, the lower part of the outer wall of the channel work block assembly are circumferentially formed with a circle and tighten slot;
Spring is tightened, the spring of tightening is set to described tighten in slot;
When guide part upward sliding of the channel work block assembly along the guide post, the channel operation block group Part is described to tighten spring contraction to contract;
When guide part slide downward of the channel work block assembly along the guide post, the channel operation block group Part expands outwardly, described to tighten spring elongation.
Further, the middle part of the outer wall of each single-lobe channel operation block is respectively formed with a petal, each single-lobe ditch The bottom of the outer wall of road operation block is respectively formed with one and tightens slot section, and each petal joint constitutes the petal structure, each described It tightens and tightens slot described in slot section joint composition.
Further, be circumferentially formed on the guide part of the guide post it is several raise upward triangular shaped lead To block, it is respectively formed with a guide space between the two neighboring guide pad, accommodates one in each guide space The single-lobe channel operation block.
Further, several guide surfaces tilted down are formed on the guide part of the guide post, wherein:It is two neighboring The guide surface is each formed between the guide pad;The single-lobe channel operation block include inner wall and be located at the inner wall The side wall of two sides, wherein:The inner wall and the guide face contacts of the single-lobe channel operation block, the single-lobe channel operation block One side wall is contacted with a guide pad, another side wall of the single-lobe channel operation block and another described guide pad Contact.
Further, further include cavity plate backing plate, the cavity plate backing plate be arranged in the lower end surface of the connecting rod with it is described Between the upper surface of cold-forging forming cavity plate, wherein:It is axially formed on the cavity plate backing plate through the logical of the cavity plate backing plate Hole, the through-hole and the guide post are coaxially disposed, the aperture of the through-hole and the special-shaped channel clutch can be formed The outer diameter in shell portion matches.
Further, several locking slots being connected to the through-hole, the lock are radially formed on the cavity plate backing plate It is equipped with resilient latching member at tight slot, the resilient latching member includes clamping screw, locking sliding block and locking spring, wherein:It is described Locking sliding block is arranged in the locking slot and can slide inside and outside the locking slot, and one end of the clamping screw extends outwardly To the outside of the cavity plate backing plate, the other end of the clamping screw is extended inwardly in the locking slot and is slided with the locking Block connection, the locking spring are set on the clamping screw and are located in the locking slot, one end of the locking spring It is contradicted with the locking sliding block, the other end and cavity plate backing plate of the locking spring contradict;When the locking sliding block is along the lock When tight slot slid inward, one end of the locking sliding block can be extended inwardly into the through-hole, and the clamping screw is upheld;When When the locking sliding block slides in and out along the locking slot, the locking sliding block can be completely accommodated in the locking slot, institute State clamping screw contraction.
Further, the tension rod thru-hole through the guide post is axially formed in the guide post, the pull rod is logical Pull rod is equipped in hole, the upper end of the pull rod extends upward the guide post, and the upper end of the pull rod is formed with limited block; The cold-forging forming mold further includes limited cap, and the limit to match with the shape of the limited block is formed in the limited cap Hole, the limited block are snapped in the limit hole, the upper end of the lower end surface of the limited cap and channel work block assembly Face is inconsistent.
Compared with prior art, proposed by the present invention its is not only able to achieve the cold-forging forming to special-shaped channel clutch can, and And it can be realized the smooth material returned of special-shaped channel clutch can.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needing to make described in below embodiment being described Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others Attached drawing.Wherein:
Fig. 1 is a kind of product structure figure of special-shaped channel clutch can;
Fig. 2 is the structural representation of the warm forging shaping dies of special-shaped channel clutch can provided by the invention in first embodiment Figure;
Fig. 3 is the perspective view of the warm forging female die for forming in Fig. 2;
Fig. 4 is the cross-sectional view of the warm forging female die for forming in Fig. 2;
Fig. 5 is the perspective view of the upper punch in Fig. 2;
Fig. 6 is the partial enlarged view of the lower end of the upper punch in Fig. 5;
Fig. 7 is the structural representation of the cold-forging forming mold of special-shaped channel clutch can provided by the invention in second embodiment Figure;
Fig. 8 is the cross-sectional view of the cold-forging forming cavity plate in Fig. 7;
Fig. 9 is the top view of the cavity plate backing plate in Fig. 7;
Figure 10 is the installation diagram of the cavity plate backing plate and locking member in Fig. 7;
Figure 11 is the cross-sectional view of Figure 10;
Figure 12 is the cross-sectional view of the limited cover in Fig. 7;
Figure 13 is the cross-sectional view of the pull rod in Fig. 7;
Figure 14 is the perspective view of the channel work block assembly in Fig. 7;
Figure 15 is perspective view of the single-lobe channel operation block under a visual angle in Figure 14;
Figure 16 is perspective view of the single-lobe channel operation block under another visual angle in Figure 14;
Figure 17 is the perspective view of the guide post in Fig. 7;
Figure 18 is the cross-sectional view of the guide post in Fig. 7.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.
The introduction of the forging technology of special-shaped channel clutch can
The first embodiment of the present invention provides a kind of forging technology of special-shaped channel clutch can comprising following steps:
One, blanking, according to the blank of forging deformation amount and forge weight selection suitable diameter and segment length.
Two, base removes the oxide skin of blank surface, will be qualified to obtain in the Weight control to zone of reasonableness of blank Blank.
In some preferred embodiments, complete base after, to the surface of blank successively carry out Shot Blasting, coating treatment and Heating in medium frequency processing, to guarantee subsequent warm forging effect.
Three, warm forging is just squeezed, and carries out the just crowded forming to realize bar portion of warm forging to one end of blank.
Four, warm forging jumping-up carries out warm forging jumping-up to the other end of blank to realize the molding of the exterior contour in shell portion.
Five, warm forging shapes, and carries out warm forging to blank using warm forging shaping dies to realize the preliminarily forming in shell portion, transition part To obtain special-shaped channel clutch can first product, it is additionally formed on the inner wall in the shell portion of the abnormity channel clutch can first product Several material returned muscle are additionally formed with wavy relief fabric on the outer wall in the shell portion of the abnormity channel clutch can first product.
In some preferred embodiments, after completing warm forging forming, temperature control is successively carried out to special-shaped channel clutch can first product Annealing, Shot Blasting and phosphorus saponification process, to guarantee subsequent cold-forging forming effect.
Six, cold-forging forming carries out cold forging using shell portion of the cold-forging forming mold to special-shaped channel clutch can first product, thus So that the material in the shell portion of special-shaped channel clutch can first product further flows to obtain special-shaped channel clutch can finished product.
The introduction of the warm forging shaping dies of special-shaped channel clutch can
Fig. 2 to Fig. 6 is please referred to, in order to which the warm forging of the step five in first embodiment shapes, the second embodiment of the present invention A kind of warm forging shaping dies 200 of special-shaped channel clutch can is provided, is able to achieve to the ditch including there are six in background technique The warm forging of the special-shaped channel clutch can 100 in road shapes.
As shown in Fig. 2, in a specific embodiment, the warm forging shaping dies 200 includes top mold holder 201, upper punch 202, the components such as lower die, lower mold holder 215.Wherein:
The top mold holder 201 can move up and down between a reset position and a forging and stamping position.
The upper punch 202 is connected to the lower section of the top mold holder 201.The upper punch 202 includes formed punch body part 2021 and it is sequentially formed in the first formed punch pressing part 2023 and the second formed punch pressing part of 2021 lower end of formed punch body part 2024.Circumferentially be formed on the outer wall of the first formed punch pressing part 2023 it is including six petals and with abnormity to be formed The petal structure of the channel structure complementation of channel clutch can 100, wherein:Six petals include three first kind petals 20231 and three the second class petals 20232, three first kind petals 20231 and special-shaped channel clutch can 100 to be formed Three first kind channels 104 correspond, three of three second class petals 20232 and special-shaped channel clutch can 100 Second class channel 105 corresponds.
Further, it is circumferentially formed on the outer wall of the first formed punch pressing part 2023 there are six material returned slot 20233, The material returned slot 20233 is respectively formed between petal described in middle each adjacent two.
The lower die is connected to the top of the lower mold holder 215.The lower die includes warm forging female die for forming 207 and is set in Cavity plate outer ring 206 outside the warm forging female die for forming 207.The warm forging female die for forming 207 is coaxially set with the upper punch 202 It sets, the temperature to match with the exterior contour of special-shaped channel clutch can 100 to be formed is formed in the warm forging female die for forming 207 It is swaged into shape die cavity.The warm forging forming die cavity successively includes bar portion forming die cavity 2071, transition part forming die cavity from bottom to top 2072 and shell portion shape die cavity 2073.
Further, circumferentially it is formed with wavy undulation portion on the inner wall of shell portion forming cavity 2073, described Volt portion is alternately formed by connecting by several raised sections 20732 and several recess sections 20731.
Please continue to refer to shown in Fig. 2, the course of work of warm forging shaping dies 200 provided by the invention is as follows:
Control top mold holder 201 goes upward to the reset position, then downward by the bar portion of the blank after warm forging jumping-up The warm forging finishing die for being placed in warm forging female die for forming 207 is intracavitary;
201 downlink of top mold holder is controlled until reaching the forging and stamping position.In the process, the second of the upper punch 202 The upper end of formed punch pressing part 2024, the successive extrusion blank of the first formed punch pressing part 2023, so that the material of the upper end of blank It sufficiently flows around and shapes die cavity full of the warm forging.After the completion of forging and stamping, the first formed punch pressing part of the upper punch 202 2023 completely into extremely shell portion forming cavity 2073, and the second formed punch pressing part 2024 of the upper punch 202 enters to institute It states in transition part forming cavity 2072, blank is extruded with the special-shaped channel clutch can first product in shell portion, transition part.
Due to circumferentially being formed on the outer wall of the first formed punch pressing part 2023 there are six material returned slot 20233, it is described different Protrusion is mutual with the structure of the material returned slot 20233 there are six being additionally formed on the inner wall in the shell portion of shape channel clutch can first product The material returned muscle of benefit.Similarly, due to being circumferentially formed with wavy undulation portion on the inner wall of shell portion forming cavity 2073, because This, is additionally formed with complementary with the undulation portion wavy on the outer wall in the shell portion of the abnormity channel clutch can first product Relief fabric.The relief fabric is that subsequent cold-forging technique has established material foundation.
Please continue to refer to shown in Fig. 2, in the present embodiment, the upper end of the warm forging female die for forming 207 is connected with guide sleeve 204, the guide sleeve 204 is coaxially disposed with the upper punch 202, the aperture of the guide sleeve 204 and the upper punch 202 The diameter of formed punch body part 2021 matches.Further, the lower end surface of the guide sleeve 204 and the warm forging female die for forming Located pin 205 connects between 207 upper surface.
When the top mold holder 201 drives the upper punch 202 mobile towards the forging and stamping position, the upper punch 202 Formed punch body part 2021 can be close to the guide sleeve 204 inner wall it is mobile, it is final to protect to prevent upper punch 202 from wandering off The forming effect of product is demonstrate,proved.
For convenience of the material returned, in the present embodiment, pressure is provided between the warm forging female die for forming 207 and the lower mold holder 215 Power block 209 is formed with the liftout channel for being connected to and being coaxially disposed with warm forging forming die cavity in the pressure block 209.It is described Material returned bar 208, the aperture of the cross-sectional diameter of the material returned bar 208 and the bar portion forming cavity 2071 are equipped in liftout channel Match.The lower section of the material returned bar 208 is equipped with the bottom knockout bar 210 through the lower mold holder 215, when the bottom knockout bar It can push the upper end of the material returned bar 208 to be upwardly into intracavitary to realize the material returned to the warm forging finishing die when pushing up on 210.
In order to promote the stability of the lower die, in the present embodiment, between the pressure block 209 and the lower die-sleeve 212 Successively it is packed with inside fic circle 213 and outside fix circle 214.
In order to guarantee the stability of the guide sleeve 204, prevent it from tilting during forging and stamping.In the present embodiment Warm forging shaping dies 200 further includes lower die-sleeve 212 and guide sleeve pressing plate 211.Wherein:The lower die-sleeve 212 be connected to it is described under On mould bases 215, the lower die is worn at the upper end opening of the lower die-sleeve 212, and the guide sleeve pressing plate 211 sells axis connection and exists The top of the lower die-sleeve 212.It is formed with first step portion on the guide sleeve pressing plate 211, is formed on the guide sleeve 204 The second step portion being mutually matched with first step portion, the first step portion are connected with the second step portion.
As a preferred embodiment, in the present embodiment, the side outside the upper punch 202 is provided with coolant liquid spray equipment 203.When the temperature of upper punch 202 is excessively high to be needed to cool down, coolant liquid can be sprayed to by the coolant liquid spray equipment 203 The surface of formed punch 202 is to realize cooling.
In order to realize the cold-forging forming of the step six in first embodiment, third implementation of the invention provides a kind of abnormity The cold-forging forming mold 300 of channel clutch can is able to achieve in background technique including special-shaped channel clock there are six channel The cold-forging forming of shape shell 100.
The introduction of the cold-forging forming mold of special-shaped channel clutch can
Fig. 7 to Figure 18 is please referred to, the cold-forging forming mold 300 includes top mold holder 301, cold-forging forming cavity plate 305, guiding Column 317, tightens the components such as spring 307, lower mold holder 313 at channel work block assembly 306.Wherein:
The top mold holder 301 can move up and down between a reset position and a forging and stamping position.
The cold-forging forming cavity plate 305 is connected to the lower section of the top mold holder 301, the cold-forging forming through connecting rod 303 The extrusion die cavity 3015 for running through the cold-forging forming cavity plate 305 from top to bottom is formed in cavity plate 305, the extrusion die cavity is most The outer diameter of small-bore and the shell portion of the special-shaped channel clutch can 100 to be formed matches.In the present embodiment, as shown in figure 8, The aperture of the extrusion die cavity 3015 first gradually reduces and then gradually expands from top to bottom.I.e.:The extrusion die cavity 3015 is in two The aperture of segmentation structure, upper section gradually reduces from top to bottom, and lower section gradually expands from top to bottom.
The guide post 317 is connected to the top of the lower mold holder 313 and coaxially sets with the cold-forging forming cavity plate 305 It sets, the upper end of the guide post 317 is tapered to form the guide part tilted down.
The channel work block assembly 306 is set on the guide part of the guide post 317 and can be along the guide post 317 guide part slides up and down.In the present embodiment, the channel work block assembly 306 is by six pieces of single-lobe channel operation blocks 3061 It surrounds, six pieces of single-lobe channels operation block 3061 can inwardly be gathered to realize the channel work block assembly 306 It shrinks, six pieces of single-lobe channels operation block 3061 can realize the expansion of the channel work block assembly 306 to external diffusion.
In the present embodiment, the middle part of the outer wall of the channel work block assembly 306 is circumferentially formed with including six petals And the petal structure complementary with the channel structure of special-shaped channel clutch can 100 to be formed, specifically, each single-lobe channel The middle part of the outer wall of operation block 3061 is respectively formed with a petal 30611, and six petals 30611 constitute the petal knot Structure.
The lower part of the outer wall of the channel work block assembly 306 is circumferentially formed with a circle and tightens slot, described to tighten spring 307 be set to it is described tighten in slot, specifically, the bottom of the outer wall of each single-lobe channel operation block 3061 is respectively formed Tighten slot section 30612, six tight slot sections 30612, which are encircled into, described tightens slot.
When guide part upward sliding of the channel work block assembly 306 along the guide post 317, the channel work Make block assembly 306 to contract, it is described to tighten 307 synchronous of spring.
When guide part slide downward of the channel work block assembly 306 along the guide post 317, the channel work Make block assembly 306 to expand outwardly, it is described to tighten 307 synchro-draw of spring.
Further, the outer sheath of the guide post 317 is equipped with support sleeve, when 306 slide downward of work block assembly When, lower end is finally inconsistent with the upper surface of the support sleeve.
Please continue to refer to shown in Fig. 7, the course of work of cold-forging forming mold 300 provided by the invention is as follows:
Step 1: control top mold holder 301 goes upward to the reset position, circumferentially by six pieces of single-lobe channel operation blocks 3061 It surrounds on the guide part of the guide post 317, and spring 307 will be tightened and be packed into described tighten to realize the channel work The installation of block assembly 306.
Step 2: installing the special-shaped channel clutch can first product after warm forging and molding to channel work block assembly On 306, it must guarantee after being installed:Each channel on the inner wall in the shell portion of the abnormity channel clutch can first product with The petal 30611 on the outer wall of corresponding channel work block assembly 306 is aligned, the abnormity channel clutch can just at Each material returned muscle on the inner wall in the shell portion of product is then clamped between the single-lobe channel operation block 3061 of adjacent two.
Step 3: it is mobile towards the forging and stamping position to control the top mold holder 301.The cold-forging forming cavity plate 305 squeezes The inner wall of compression mold cavities sufficiently squeezes the relief fabric on the outer wall of special-shaped channel clutch can first product, so that special-shaped channel clock The outer wall materials in the shell portion of shape shell first product generate sufficiently flowing.Synchronous, along institute after the channel work compression of block assembly 306 Guide post 317 is stated to move down until reaching the forging and stamping position.During this, the channel works block assembly 306 to extending out It opens to which the inner wall in the shell portion to the special-shaped channel clutch can first product forms abundant extruding, so that special-shaped channel is bell The inner-wall material in the shell portion of shell first product generates sufficiently flowing.As it can be seen that the cold-forging forming cavity plate 305 and the channel operation block The combination of extrusion of component 306 can guarantee that the shell portion material of special-shaped channel clutch can first product obtains sufficient cold forging and squeezes, from And improve the cold-forging forming effect of product.
Here it is seen that the relief fabric that above-mentioned second embodiment is formed on the outer wall of special-shaped channel clutch can first product Good material foundation is provided for the cold-forging forming of the present embodiment.Above-mentioned second embodiment is in special-shaped channel clutch can first product Shell portion inner wall on the material returned muscle that is formed then can guarantee in extrusion process, in the shell portion of special-shaped channel clutch can first product Each channel on wall, which is remained with each petal 30611 on the outer wall of channel work block assembly 306, to be aligned.
It is resetted Step 4: controlling 301 uplink of top mold holder.Special-shaped channel clutch can after forming is in the cold-forging forming It is moved up under the drive of cavity plate 305,306 decompression of work block assembly, the spring 307 of tightening shrinks to described in driving The block assembly 306 that works is synchronous to contract so that each petal 30611 on the outer wall of the work block assembly 306 with Each channel on the shell portion inner wall of special-shaped channel clutch can after forming is kept completely separate.Special-shaped ditch after finally making forming Road clutch can be separated successfully with the work block assembly 306 to realize the material returned.
It can be seen that cold-forging forming mold 300 provided by the invention, can not only realize to special-shaped channel clutch can The abundant cold-forging forming in shell portion can smoothly realize the material returned of special-shaped channel clutch can to promote the forming effect of product.
In order to further enhance the moving stability of channel work block assembly 306, as shown in Figure 15 to 18, this implementation It is circumferentially formed in example, on the guide part of the guide post 317 there are six the triangular shaped guide pad 3172 to raise upward, It is respectively formed with a guide space between the two neighboring guide pad 3172, an institute is accommodated in each guide space State single-lobe channel operation block 3061.Specifically:Several guide surfaces tilted down are formed on the guide part of the guide post 317 3171, the guide surface 3171 is each formed between the two neighboring guide pad 3172.The single-lobe channel operation block 3061 inner wall 30613 is contacted with the guide surface 3171, a side wall 30614 and one for the single-lobe channel operation block 3061 A guide pad 3172 contacts, another side wall 30614 and another described guiding of the single-lobe channel operation block 3061 Block 3172 contacts.
As it can be seen that six guide pads to raise upward are that channel work block assembly 306 provides mobile guide, from And prevent channel work block assembly 306 from occurring radial deflection in moving process.
Since the inner wall of the cold-forging forming cavity plate 305 is limited to the clamping force of the special-shaped channel clutch can after forming, In order to successfully from the material returned on the work block assembly 306 and prevent special-shaped channel bell special-shaped channel clutch can after forming Shell falls during the material returned.
As shown in Fig. 1, Fig. 9 to Figure 11, the cold-forging forming mold 300 in the present embodiment further includes cavity plate backing plate 304, described Cavity plate backing plate 304 is arranged between the lower end surface of the connecting rod 303 and the upper surface of the cold-forging forming cavity plate 305.
The through-hole 3041 through the cavity plate backing plate 304, the through-hole are axially formed on the cavity plate backing plate 304 3041 are coaxially disposed with the guide post 317, the aperture of the through-hole 3041 and the special-shaped channel clutch can be formed The outer diameter in shell portion matches.Several locking slots being connected to the through-hole 3041 are radially formed on the cavity plate backing plate 304 3042, resilient latching member 315 is equipped at the locking slot 3042.
The resilient latching member 315 includes clamping screw 3151, locking sliding block 3152 and locking spring 3153, wherein:Institute Locking sliding block 3152 is stated to be arranged in the locking slot 3042 and can slide inside and outside the locking slot 3042, the clamping screw 3151 one end extends out to the outside of the cavity plate backing plate 304, and the other end of the clamping screw 3151 extends inwardly to It is connect in the locking slot 3042 and with the locking sliding block 3152, the locking spring 3153 is set in the clamping screw On 3151 and it is located in the locking slot 3042, one end of the locking spring 3153 and the locking sliding block 3152 contradict, institute The other end and cavity plate backing plate 304 for stating locking spring 3153 contradict.
When the locking sliding block 3152 is along 3042 slid inward of locking slot, one end energy of the locking sliding block 3152 It enough extends inwardly into the through-hole 3041, the clamping screw 3151 is upheld.When the locking sliding block 3152 is along the locking When slot 3042 slides in and out, the locking sliding block 3152 can be completely accommodated in the locking slot 3042, the clamping screw 3151 shrink.
Please continue to refer to shown in Fig. 7, the working principle of the cavity plate backing plate 304 and the resilient latching member 315 is as follows:
After cold forging squeezes, the shell portion of the special-shaped channel clutch can after forming enters to the logical of the cavity plate backing plate 304 In hole 3041, the locking spring 3153 inwardly squeezes the locking sliding block 3152 so that the locking sliding block 3152 to The interior shell portion for squeezing special-shaped channel clutch can finally makes into generate a stable chucking power to special-shaped channel clutch can Special-shaped channel clutch can after shape is successfully detached from from channel work block assembly 306 and is moved up with the top mold holder Until reaching the reset position.
In order to which channel work block assembly 306 to be limited in the guide post 317, its quilt during the material returned is prevented The cold-forging forming cavity plate 305 takes away the guide post 317.In the present embodiment, as shown in Figure 12 to Figure 13 and Figure 17 to Figure 18, The tension rod thru-hole 3173 through the guide post 317 is axially formed in the guide post 317, in the tension rod thru-hole 3173 It is equipped with pull rod 318, the upper end of the pull rod 318 extends upward the guide post 317, and the upper end of the pull rod 318 is formed There is limited block 3181.The cold-forging forming mold 300 further includes limited cap 314, is formed in the limited cap 314 and the limit The limit hole 3141 that the shape of position block 3181 matches, the limited block 3181 are snapped in the limit hole 3141, the limit The lower end surface of position cap 314 and the upper surface of channel work block assembly 306 are inconsistent.
The pull rod 318 pulls downward on the limited cap 314, channel operation block group described in 314 lower compression of limited cap The upper surface of part 306, so that channel work block assembly 306 is maintained on the guide part of the guide post 317.
Please continue to refer to shown in Fig. 1, in the present embodiment, the support sleeve that the outside of the guide post 317 is arranged is from upper It is successively successively spliced by upper support set 308, lower support set 309 and lower support set under and.The guide post 317 Lower section is equipped with pressure block, and the outside of the pressure block is successively arranged with locating ring 311 and retainer plate 312.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in fields Personnel are it should be understood that the description in embodiment is only exemplary, before without departing from true spirit and scope of the present invention Put make it is all change all should belong to protection scope of the present invention.Scope of the present invention is by the power What sharp claim was defined, rather than limited by the foregoing description in embodiment.

Claims (7)

1. a kind of cold-forging forming mold of abnormity channel clutch can, which is characterized in that it includes:
Top mold holder;
Cold-forging forming cavity plate, the cold-forging forming cavity plate are connected to the lower section of the top mold holder, the cold-forging forming through connecting rod Be formed in cavity plate from top to bottom run through the cold-forging forming cavity plate extrusion die cavity, the minimum-value aperture of the extrusion die cavity with to The outer diameter in the shell portion of the special-shaped channel clutch can of forming matches;
Lower mold holder;
Guide post, the guide post are connected to the top of the lower mold holder and are coaxially disposed with the cavity plate, the guide post Upper end is tapered and forms guide part;
The work block assembly of channel made of being surrounded as several single-lobe channel operation blocks, the channel operation block component is set in described It can slide up and down on the guide part of guide post and along the guide part of the guide post, the outer wall of the channel work block assembly Middle part is circumferentially formed with petal knot including several petals and complementary with the channel structure of special-shaped channel clutch can be formed Structure, the lower part of the outer wall of the channel work block assembly are circumferentially formed with a circle and tighten slot;
Spring is tightened, the spring of tightening is set to described tighten in slot;
When guide part upward sliding of the channel work block assembly along the guide post, the channel work block assembly to Contract, it is described to tighten spring contraction;
When guide part slide downward of the channel work block assembly along the guide post, the channel work block assembly to Outer expansion, it is described to tighten spring elongation.
2. the cold-forging forming mold of abnormity channel clutch can as described in claim 1, which is characterized in that each single-lobe channel The middle part of the outer wall of operation block is respectively formed with a petal, and the bottom of the outer wall of each single-lobe channel operation block is respectively formed with a branch of Tightly slot section, each petal joint constitute the petal structure, and each described tighten tightens slot described in slot section joint composition.
3. the cold-forging forming mold of abnormity channel clutch can as described in claim 1, which is characterized in that the guide post is led Several triangular shaped guide pads to raise upward, each shape between the two neighboring guide pad are circumferentially formed in portion Cheng Youyi guide space accommodates the single-lobe channel operation block in each guide space.
4. the cold-forging forming mold of abnormity channel clutch can as claimed in claim 3, which is characterized in that
Several guide surfaces tilted down are formed on the guide part of the guide post, wherein:The two neighboring guide pad it Between be each formed with the guide surface;
The single-lobe channel operation block includes inner wall and the side wall positioned at the inner wall two sides, wherein:The single-lobe channel work The inner wall of block and the guide face contacts, a side wall of the single-lobe channel operation block are contacted with a guide pad, institute Another side wall for stating single-lobe channel operation block is contacted with guide pad described in another.
5. the cold-forging forming mold of abnormity channel clutch can as described in claim 1, which is characterized in that it further includes die supporter Plate, the cavity plate backing plate are arranged between the lower end surface of the connecting rod and the upper surface of the cold-forging forming cavity plate, wherein:
The through-hole through the cavity plate backing plate is axially formed on the cavity plate backing plate, the through-hole and the guide post are coaxial Setting, the aperture of the through-hole and the outer diameter in the shell portion of the special-shaped channel clutch can be formed match.
6. the cold-forging forming mold of abnormity channel clutch can as claimed in claim 5, which is characterized in that
It is radially formed several locking slots being connected to the through-hole on the cavity plate backing plate, is equipped with elasticity at the locking slot Locking member, the resilient latching member include clamping screw, locking sliding block and locking spring, wherein:
The locking sliding block is arranged in the locking slot and can slide inside and outside the locking slot, one end of the clamping screw Extend out to the outside of the cavity plate backing plate, the other end of the clamping screw extend inwardly in the locking slot and with institute Locking sliding block connection is stated, the locking spring is set on the clamping screw and is located in the locking slot, the locking bullet One end of spring and the locking sliding block contradict, and the other end and cavity plate backing plate of the locking spring contradict;
When the locking sliding block is along the locking slot slid inward, one end of the locking sliding block can be extended inwardly into described In through-hole, the clamping screw is upheld;
When the locking sliding block slides in and out along the locking slot, the locking sliding block can be completely accommodated in the locking slot Interior, the clamping screw is shunk.
7. the cold-forging forming mold of abnormity channel clutch can as described in claim 1, which is characterized in that
It is axially formed the tension rod thru-hole through the guide post in the guide post, is equipped with drawing in the tension rod thru-hole Bar, the upper end of the pull rod extend upward the guide post, and the upper end of the pull rod is formed with limited block;
The cold-forging forming mold further includes limited cap, is formed in the limited cap and matches with the shape of the limited block Limit hole, the limited block are snapped in the limit hole, the lower end surface of the limited cap and channel work block assembly Upper surface is inconsistent.
CN201810692250.4A 2018-06-28 2018-06-28 Cold forging forming die of dysmorphism channel bell housing Active CN108838311B (en)

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CN201810692250.4A CN108838311B (en) 2018-06-28 2018-06-28 Cold forging forming die of dysmorphism channel bell housing

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Application Number Priority Date Filing Date Title
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001920A (en) * 1987-07-03 1991-03-26 Aida Engineering, Ltd. Method and apparatus for manufacturing a constant velocity joint and the like
WO1996002337A1 (en) * 1994-07-16 1996-02-01 Hyuk Jae Maeng Apparatus for forge-forming outer-ring of constant velocity joint and method thereof
US20010011469A1 (en) * 2000-02-07 2001-08-09 Yuichi Nagao Forming machine
CN102671989A (en) * 2012-05-11 2012-09-19 成都西马汽配制造有限责任公司 Clock-shaped shell plunger tip and processing technology of clock-shaped shell
CN102861861A (en) * 2011-07-06 2013-01-09 张太良 Precision-forging plastic molding technology of bell shell of ball-cage type universal joint
CN205464126U (en) * 2016-01-11 2016-08-17 河北汽车精密锻件厂 Bell shell finish forge ditch shrinkage of modified footpath mould
JP6181219B1 (en) * 2016-02-16 2017-08-16 Ntn株式会社 Method for forging outer joint member of constant velocity universal joint
CN207267016U (en) * 2017-07-18 2018-04-24 江苏大洋精锻有限公司 A kind of clutch can shaping dies

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001920A (en) * 1987-07-03 1991-03-26 Aida Engineering, Ltd. Method and apparatus for manufacturing a constant velocity joint and the like
WO1996002337A1 (en) * 1994-07-16 1996-02-01 Hyuk Jae Maeng Apparatus for forge-forming outer-ring of constant velocity joint and method thereof
US20010011469A1 (en) * 2000-02-07 2001-08-09 Yuichi Nagao Forming machine
CN102861861A (en) * 2011-07-06 2013-01-09 张太良 Precision-forging plastic molding technology of bell shell of ball-cage type universal joint
CN102671989A (en) * 2012-05-11 2012-09-19 成都西马汽配制造有限责任公司 Clock-shaped shell plunger tip and processing technology of clock-shaped shell
CN205464126U (en) * 2016-01-11 2016-08-17 河北汽车精密锻件厂 Bell shell finish forge ditch shrinkage of modified footpath mould
JP6181219B1 (en) * 2016-02-16 2017-08-16 Ntn株式会社 Method for forging outer joint member of constant velocity universal joint
CN207267016U (en) * 2017-07-18 2018-04-24 江苏大洋精锻有限公司 A kind of clutch can shaping dies

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